What do Mary Bono Mack, James B. Comey, Jon Huntsman, Ken Mehlman, Steve Schmidt, William F. Weld, and Meg Whitman have in common? In addition to being conservative leaders, they're also signatories to brief calling on the Supreme Court to overturn Prop. 8.

Briefs in the Prop 8 and DOMA cases provide a sneak peak into next month's Supreme Court arguments. Plus, more surveys show a surge in public support for marriage, and a rally in Colorado as the House prepares to vote on civil unions.

CNBC Host Suze Orman moderated a panel discussion Thursday at New York University on the economic harms caused by the federal government failing to recognize marriage for gay and lesbian couples.

The TV spot features Craig Stowell, a Republican and former Marine Corporal, his wife Berta, and his brother Calvin, who is gay.

Breaking news: the plaintiffs in the Prop 8 case have filed their brief before the US Supreme Court. It's an incredible record of the case so far, and a preview of the argument they'll make next month when they appear before the court. Let's run through the brief and take a look at some of the highlights.

AFER’s attorneys have filed our one and only brief with the Supreme Court. It is our chance to explain to the Justices that marriage equality is at the heart of our generation’s search for greater freedom and a basic American value, deeply rooted in our constitutional tradition.

A new video compilation shows that there's at least one point on which icons of conservative and liberal leadership agree: the freedom to marry is a fundamental American right.

New TV and print ads—now nationwide—show the widespread, bipartisan support from leaders including President Barack Obama, former Vice President Dick Cheney, former First Lady Laura Bush, and former Secretary of State Colin Powell.